Dayton weather by month

Check out Dayton weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature
Rainfall
Sunshine & UV index

Temperature in Dayton (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	2	4	10	17	23	28	30	29	25	18	11	4
Min temperature (night-time)	-8	-6	-1	5	11	15	18	16	13	6	1	-4
Heat & Humidity	0	0	0	0	0	M	M	M	L	0	0	0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Dayton

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	4	5	6	7	8	10	9	9	8	6	4	3
Daily hours of daylight	10	11	12	13	14	15	15	14	12	11	10	9
UV Index (Maximum)	2	3	4	6	8	9	9	8	7	4	2	2

Rainfall in Dayton

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	12	11	13	12	12	10	10	10	8	9	11	13
Average monthly rainfall (mm)	63	58	88	90	95	93	91	79	67	60	79	72

More about Dayton

Dayton by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Ohio (Dayton) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Dayton?

Dayton has a cold climate with hot summers and some rainfall in all months.

Dayton weather in January

Expect daytime maximum temperatures of 2°C in Dayton, Ohio in January based on long-term weather averages. There are 4 hours of sunshine per day on average with 12 days with some rainfall and typically 63 mm of rainfall in the month, which might fall as snow.

2
2°C max day temperature
4
4 hours of sunshine per day
12
12 days with some rainfall
-8
-8°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
63
63 mm of monthly rainfall
2
2 (Low) UV index

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Dayton weather in February

Expect daytime maximum temperatures of 4°C in Dayton, Ohio in February based on long-term weather averages. There are 5 hours of sunshine per day on average with 11 days with some rainfall and typically 58 mm of rainfall in the month, which might fall as snow.

4
4°C max day temperature
5
5 hours of sunshine per day
11
11 days with some rainfall
-6
-6°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
58
58 mm of monthly rainfall
3
3 (Moderate) UV index

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Dayton weather in March

Expect daytime maximum temperatures of 10°C in Dayton, Ohio in March based on long-term weather averages. There are 6 hours of sunshine per day on average with 13 days with some rainfall and typically 88 mm of rainfall in the month.

10
10°C max day temperature
6
6 hours of sunshine per day
13
13 days with some rainfall
-1
-1°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
88
88 mm of monthly rainfall
4
4 (Moderate) UV index

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Dayton weather in April

Expect daytime maximum temperatures of 17°C in Dayton, Ohio in April based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 90 mm of rainfall in the month.

17
17°C max day temperature
7
7 hours of sunshine per day
12
12 days with some rainfall
5
5°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
90
90 mm of monthly rainfall
6
6 (High) UV index

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Dayton weather in May

Expect daytime maximum temperatures of 23°C in Dayton, Ohio in May based on long-term weather averages. There are 8 hours of sunshine per day on average with 12 days with some rainfall and typically 95 mm of rainfall in the month.

23
23°C max day temperature
8
8 hours of sunshine per day
12
12 days with some rainfall
11
11°C min night temperature
14
14 hours of daylight per day
0
No heat & humidity
95
95 mm of monthly rainfall
8
8 (Very High) UV index

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Dayton weather in June

Expect daytime maximum temperatures of 28°C in Dayton, Ohio in June based on long-term weather averages. There are 10 hours of sunshine per day on average with 10 days with some rainfall and typically 93 mm of rainfall in the month.

28
28°C max day temperature
10
10 hours of sunshine per day
10
10 days with some rainfall
15
15°C min night temperature
15
15 hours of daylight per day
M
Moderate heat & humidity
93
93 mm of monthly rainfall
9
9 (Very High) UV index

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Dayton weather in July

Expect daytime maximum temperatures of 30°C in Dayton, Ohio in July and high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average with 10 days with some rainfall and typically 91 mm of rainfall in the month.

30
30°C max day temperature
9
9 hours of sunshine per day
10
10 days with some rainfall
18
18°C min night temperature
15
15 hours of daylight per day
M
Moderate heat & humidity
91
91 mm of monthly rainfall
9
9 (Very High) UV index

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Dayton weather in August

Expect daytime maximum temperatures of 29°C in Dayton, Ohio in August based on long-term weather averages. There are 9 hours of sunshine per day on average with 10 days with some rainfall and typically 79 mm of rainfall in the month.

29
29°C max day temperature
9
9 hours of sunshine per day
10
10 days with some rainfall
16
16°C min night temperature
14
14 hours of daylight per day
M
Moderate heat & humidity
79
79 mm of monthly rainfall
8
8 (Very High) UV index

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Dayton weather in September

Expect daytime maximum temperatures of 25°C in Dayton, Ohio in September based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 67 mm of rainfall in the month.

25
25°C max day temperature
8
8 hours of sunshine per day
8
8 days with some rainfall
13
13°C min night temperature
12
12 hours of daylight per day
L
Low heat & humidity
67
67 mm of monthly rainfall
7
7 (High) UV index

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Dayton weather in October

Expect daytime maximum temperatures of 18°C in Dayton, Ohio in October based on long-term weather averages. There are 6 hours of sunshine per day on average with typically 60 mm of rainfall in the month.

18
18°C max day temperature
6
6 hours of sunshine per day
9
9 days with some rainfall
6
6°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
60
60 mm of monthly rainfall
4
4 (Moderate) UV index

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Dayton weather in November

Expect daytime maximum temperatures of 11°C in Dayton, Ohio in November based on long-term weather averages. There are 4 hours of sunshine per day on average with 11 days with some rainfall and typically 79 mm of rainfall in the month.

11
11°C max day temperature
4
4 hours of sunshine per day
11
11 days with some rainfall
1
1°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
79
79 mm of monthly rainfall
2
2 (Low) UV index

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Dayton weather in December

Expect daytime maximum temperatures of 4°C in Dayton, Ohio in December based on long-term weather averages. There are 3 hours of sunshine per day on average with 13 days with some rainfall and typically 72 mm of rainfall in the month, which might fall as snow.